Update Android_SMSFraud.yar

Mobile_Malware/Android_SMSFraud.yar

@@ -2,7 +2,7 @@
     This Yara ruleset is under the GNU-GPLv2 license (http://www.gnu.org/licenses/gpl-2.0.html) and open to any user or organization, as    long as you use it under this license.
 */
 
-rule smsfraud1
+rule smsfraud1 : android
 {
     meta:
         author = "Antonio Sánchez https://twitter.com/plutec_net"
@@ -21,7 +21,7 @@ rule smsfraud1
         
 }
 
-rule smsfraud2 {
+rule smsfraud2 : android {
     meta:
         author = "Antonio Sánchez https://twitter.com/plutec_net"
         reference = "https://koodous.com/"